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pkt_sched: Add qdisc->ops->peek() implementation.

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Add qdisc->ops->peek() implementation for work-conserving qdiscs.
With feedback from Patrick McHardy.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski
2008-10-31 00:45:55 -07:00
committed by David S. Miller
parent 99c0db2679
commit 8e3af97899
8 changed files with 69 additions and 0 deletions
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10
net/sched/sch_dsmark.c
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@ -313,6 +313,15 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
return skb;
}
static struct sk_buff *dsmark_peek(struct Qdisc *sch)
{
struct dsmark_qdisc_data *p = qdisc_priv(sch);
pr_debug("dsmark_peek(sch %p,[qdisc %p])\n", sch, p);
return p->q->ops->peek(p->q);
}
static int dsmark_requeue(struct sk_buff *skb, struct Qdisc *sch)
{
struct dsmark_qdisc_data *p = qdisc_priv(sch);
@ -496,6 +505,7 @@ static struct Qdisc_ops dsmark_qdisc_ops __read_mostly = {
.priv_size = sizeof(struct dsmark_qdisc_data),
.enqueue = dsmark_enqueue,
.dequeue = dsmark_dequeue,
.peek = dsmark_peek,
.requeue = dsmark_requeue,
.drop = dsmark_drop,
.init = dsmark_init,